Exhibiting machine



R. L. L. WARNER EXHIBITING MACHINE May 10, 1938.

Filed July 27, 1936 5 Sheets-Sheet l W UM 1 4n w t r M@ ....c w z May10, 1938.

R. L. L. WARNER EXHIBITING MACHINE Filed July 27, 1936 5 Sheets-Sheet 2[wen/f0 RoertLLMrzzer fllforney.

May 10, 1938. R.,L. WARNE I 2,117,045

EXHIBITING MACHINE Filed July 27, 1 936 s Sheets-Sheet 5 [rave/afar:

03k/arLLhh/ervm fi 11. I

Patented May 10, 1938 UNITED STATES PATENT OFFICE EXHIBITING MACHINECalif.

Application July 27, 1936, Serial No. 92,739

14 Claims.

This invention relates generally to exhibiting apparatus, and moreparticularly to changeable exhibitors.

An object of this invention is to provide a changeable exhibitor bywhich any selected portion of a web can be displayed for observation ofreading or other matter thereon for a predetermined period of time uponthe insertion of a proper coin or token.

Another object of this invention is to provide a changeable exhibitorparticularly adapted although not necessarily for the display of any oneof a number of horoscopes over a predetermined period of time inaccordance with the setting of a selector, by the passing of thepreselected portion of a web containing such horoscopes, across anobservation window at reading speed.

A further object of the invention is to provide a changeable exhibitorof the above described character embodying means for rapidly feeding theweb to any one of a plurality of starting positions in accordance withthe preselection of a particular portion of the web to be displayed, andthen feeding such selected portion of the web across the observationwindow at a sufficiently reduced speed for reading, all automaticallyand under the direct control of the operator, to the end of obviatingunnecessary delays in the operation of the machine which would beotherwise caused were the web fed at reading speed to the properstarting position preparatory to the display of the selected portion ofthe web.

A still further object of the invention is to provide a changeableexhibitor embodying mechanism for projecting onto a screen images ofmatter on a web of film, which screen is unilluminated from within themachine except during the motion of a pre-selected portion of the 71macross the screen, so that the film will, at all other times, beinvisible.

With these and other objects in View, the invention consists in thecombinations and arrangements of elements as set forth in the followingspecification and particularly pointed out in the appended claims.

In the accompanying drawings,

Figure 1 is a view showing in front elevation partly broken away thechangeable exhibitor embodying this invention;

Figure 2 is a vertical sectional view taken on the line 2-2 of Figure 1;

Figure 3 is a detail plan view of fast and slow motors and the operativeconnection therebetween as embodied in the invention;

Figure 4 is a detail plan sectional view taken on the line 44 of Figure2 and illustrating web driving means and a circuit controller embodiedin the invention;

Figure 5 is a view of the circuit controller in 5 side elevation partlybroken away;

Figure 6 is a sectional view taken on the line E6 of Figure 5;

Figures 7, 8 and 9 are plan, front and side Views, respectively, of acoin-controlled switch embodied in the invention;

Figure 10 is a front View of a dial for a selector embodied in theinvention;

Figure 11 is a diagrammatic view of the electrical circuits embodied inthe invention.

Referring specifically to the drawings, the in-- vention in its presentembodiment comprises a generally rectangular cabinet C having a frontportion of its top wall It] upwardly and rearwardly inclined andprovided with a rectangular opening spanned by a translucent screen I Ionto which is adapted to be projected the image of matter on a web l2 inthe form of an endless strip oi film such as is employed for motionpictures. The web I2 is trained over several flanged idler pulleys l3,l4, l5, I6, l1, l8, I9, 20, 2|, 22 and 23 mounted at various locationsin the cabinet as shown in Figure 2, so as to accommodate a relativelylong strip of film in the cabinet and provide the necessary space in thecabinet for 30 mechanism embodied in the invention. Between the pulleysl9 and a weighted tensioning roller 24 bears on the web and is securedto a shaft 25 slidably mounted in vertical guides 26--26, so as toconstantly tend to gravitate in the guides and thus maintain the filmtaut irrespective of such variations in the length of the film as occurin response to temperature changes.

Between the pulleys l3 and Hi the web I2 is arranged in parallelism withand directly opposite the screen II and passes through a lamp housing 21suitably supported in the cabinet C. The stretch of the web within thehousing 21 is interposed between a lamp 28 backed by a reflector 29, anda lens 30 for projecting an image of matter on the web, against theinner'side of the screen ll when the lamp 28 is lighted.

Between the pulleys l5 and IS the web [2 is trained over a drivingsprocket 3|, the teeth of which are adapted to co-act with the usualopenings provided along the edges of motion picture film, to drive thefilm in response to rotation of the sprocket. The sprocket is fixed to ashaft 32 journaled in bearings 33-33 in the cabinet and is adapted to bedriven at high and low speeds by electric motors 34 and 35,respectively, supported on a platform 36 in the cabinet. For thispurpose a worm wheel 31 is fixed to the shaft 32 and constantly mesheswith a worm 38 fixed to an inclined shaft 39 journaled in bearings 40and having fixed to its lower end a bevel gear 4| constantly meshingwith a bevel pinion 42 fixed to the shaft 43 of the high speed motor 34.

Co-axially arranged with respect to the motor shaft 43 is a shaft 44journaled in bearings 45 and having fixed to that end confronting theshaft 43, one jaw of a ratchet type of clutch 46, the other jaw of whichis slidably keyed on the projecting end of the shaft 43 and is urged bya coil spring 41 into clutching engagement with the first mentioned jaw.Fixed to the shaft 44 between the bearings 45 is a bevel gear 48constantly meshing with a second bevel gear 49 fixed to the low speedmotor shaft 50, all of which is clearly shown in Figure 3. When currentis supplied to the high speed motor 34 to drive its shaft 43 in thedirection of the arrow in Figure 2, the clutch 46 will be ineffective todrive the shaft 44 and hence the low speed motor 35, but when current issupplied to the latter the clutch is operative to drive the shaft 43 andhence the sprocket 3| through the intervening gearing. Thus the clutchfunctions to prevent damage to the low speed motor when the high speedmotor is in operation.

In one use of the invention for the display of horoscopes for amusementpurposes, the total length of the web I2 is divided into portions, onefor each month of the year or sign of the zodiac, and each bearing suchmatter as would relate to characteristics of a person born under suchsign.

A manually operable selector S is provided at the inner side of thefront wall of the cabinet and is correlated with the aforestateddifferent portions of the web for the selection of any one of suchportions for display. This selector comprises a series of twelvecontacts 5|a, 5| b, 5|c, 5|d, 5|e, 5|), 5|g, 5|h, 5|i, 5|7' and 5|k,equally spaced circumferentially on a plate 52 of insulating materialsupported from the front wall. A spring contact member 53 is fixed to ashaft 54 extended through the front wall of the cabinet and providedexteriorly thereof with a knob 55 adapted to be manipulated to engagethe member 53 with any one of the aforestated contacts 5|, 5|a to 5|7c,inclusive. A pointer 56 is also fixed to the shaft 54 and is adapted totraverse a dial 5? provided with suitable indexes relating to theincluded days in twelve monthly periods of the year, corresponding tothe twelve signs of the zodiac.

In the present instance, the operation of the changeable exhibitor ischeckor coin-controlled, and for this purpose a coin chute 58 isprovided in the cabinet C and has an entrance slot 56 in one side wallof the cabinet for the insertion of a coin. This coin chute is in twosections, the upper one of which is inclined and has its lower enddisposed for the discharge of a coin into the vertical lower section 66of the chute. Correlated with the discharge end of the chute section 60is a coin-controlled switch 6| composed of a fixed contact 62 secured toand insulated from the chute section, and a movable contact arm 63carried by the armature 64 of an electro-magnet 65 supported on thechute section, all of which is clearly shown in Figures '7, 8 and 9. Acoil spring 66 co-acts with the armature and chute section 60 to urgethe contact arm 63 to the position shown in Figure 8, wherein such armcoacts with the fixed contact 62 to obstruct the passage of a coin sothat the latter will bridge the contact and contact arm to complete anelectrical circuit to the high speed motor 34 as will be more fullydescribed in the operation of the exhibitor. However, when the windingof the electro-magnet 65 is energized, the contact arm 63 is moved bythe armature 64 to a position sufficiently further spaced from thecontact 62 to permit a bridging coin to gravitate from the coin chuteinto a coin box 61 so as to disrupt the aforestated circuit at theswitch 6|.

Correlated with the selector S and operating in conjunction with twelverelays 68, 68a, 68b, 68c, 68d, 68e, 68f, 68g, 68h, 681', 687' and 6870,one for each of the selector contacts 5|, 5|a to 5|k, inclusive, is acircuit controller 69 embodying twelve switches 70, a, 70b, 10c, 10d,16e, 10f, 16g, 10h, 162', 107 and 10k, (Figures 5 and 6), one for eachrelay. This circuit controller is in the form of a drum fixed to a shaft1| journaled in bearings 12 and having at one end a worm wheel 13constantly meshing with a worm 14 fixed to shaft 32 so as to be driventhereby in such ratio that the drum makes one revolution during thepassage of the total length of the web l2 past a'fixed point.

Each of the switches 10, 16a to 107:: comprises a metallic disk (Figures5 and 6) having a forced fit on the shaft H and provided with aperipheral contact 16 adapted during the rotation of the drum to engagea spring contact arm 1! of the respective switch, fixed to and insulatedfrom a cross member 18 in the cabinet C, which also supports thebearings '12. The disks 15 are separated by insulating disks T9 toprovide spaces for the contact arms 11; and the shaft N forms a commongrounded return line for these switches as shown in Figure 11. It willbe noted that the arrangement of the peripheral contacts is such thatthey are equally spaced circumferentially around the controller drum soas to successively engage the respective contact arm 11 from one end ofthe drum to the other as the drum is rotated in synchronism with themovement of the web I2.

From a consideration of Figure 11, it will be noted that each of therelays 68, 68a. to 6870 is provided with three switches 60, 8| and 82,each composed of a fixed contact and a spring contact arm, and that thethree contact arms of each relay are influenced as a unit by the magnet83 of the respective relay. The twelve normally open switches 80 arearranged in multiple series, and in series with the winding of theelectromagnet 65. The twelve normally closed switches 8| are arranged inseries with each other and with the high speed motor 34 and thecoin-controlled switch 6|. The switches 82 are arranged in multipleseries and in series with the low speed motor 35. The winding of eachone of the magnets 83 is arranged in series with the coin-controlledswitch 6|; with one of the switches formed by the contacts 5| 5|a to 5|kand the contact member 53 of the selector S; and with one of theswitches 10, Illa to 10k of the circuit controller 69.

The operation of the changeable exhibitor is as follows:

Reference will be had particularly to Figure 11. The knob 55 is firstmanipulated to correlate its pointer 56 to that one of the twelve month-1y periods of days on the dial 5'! for which a reading is desired, thisoperation correspondingly moving the contact member 53 into engagementwith that one of the contacts 5|, 5|a to 5H0 of the selector S,correlated with the particular portion of the web l2 containing thehoroscope for such part of the year. In the present instance, thesetting is illustrated in Figures 10 and 11 as being for the periodbetween September 24 and October 23. Following such selection, a coin isdeposited in the chute 58 to bridge the contact 62 and contact arm 63 ofthe coin controlled switch 6| to supply current to the high speed motor34 by completing a circuit as follows:

From one side of the line through conductor 84 to the contact arm 63,the coin, contact 62, conductor 85, high speed motor 34, through all ofthe normally closed series connected relay switches 8| to the other andgrounded side of the line.

The web l2 will now be driven through the sprocket 3| at a high speed,the circuit controller 69 also being positively driven in synchronismwith the feed of the web. The selected setting as illustrated utilizesthat one of the twelve relay circuits including the relay 68, so thatwhen the correlated switch 18 of the twelve switches of the circuitcontroller has been closed by engagement of the respective peripheralcontact 16 with the respective spring contact arm 11 as will occur whenthe drum has been rotated to a position wherein the selected portion ofthe film reaches a starting position relative tothe screen H for thedisplay of the matter on such selected web portion, the magnet 83 of therelay 68 will be energized to open the switch 8| and close the switchesand 82 by completing one of the twelve relay circuits as follows:

From one side of the line through conductor 84, conductor 86, contactmember 53, selector contact 5|, conductor 81, winding of relay magnet83, conductor 88, contact 16 and contact arm 11 of the circuitcontroller switch 10, and shaft H to the other side of the line.

By thus opening the switch 8| of the relay 68, the supply of current tothe high speed motor 34 is discontinued, as the first described circuitfor such motor is now broken. By the closing of the switch 88 of therelay 68, the electromagnet B5 is energized to attract its armature 64and thus actuate the contact arm 63 to release the coin and permit sameto gravitate into the coin box 61. By the closing of the switch 82 ofthe relay 68, current will now be supplied to the low speed motor 35 bycompleting a circuit as follows:

From one side of the line through conductor 84, conductor 89, slow speedmotor 35, conductor 9|], through switch 82 to the other side of theline. Current is also supplied to the lamp 28 so that as the web is nowmoving at reading speed the matter on the selected portion of the webwill be projected onto the screen When the contact 16 of the circuitcontroller switch ID disengages the respective contact arm Tl, whichoccurs upon suflicient feeding of the web to pro ject onto the screenthe matter on the selected portion of the web, the magnet 83 of therelay 68 is de-energized to restore the switches 80, 8| and 82 of suchrelay to their normal positions, thus opening the two circuits includingthe electro-magnet 65 and the slow speed motor and lamp 28 so that thecycle of operation is completed, and the exhibitor ready for asucceeding operation by a desired manipulation of the selector S and thedeposit of the proper coin.

It will be clear that in accordance with the position of the selector S,the proper one of the twelve relay circuits is rendered operativefollowing the insertion of a coin to discontinue the the web has beenfed thereby to the proper start ing position for the display of theselected portion of the web, and is further rendered operative to supplycurrent to the slow speed motor 35 during the period of engagement ofthat peripheral contact 16 and contact arm 11 of the circuit controller69 included in the relay circuit selected.

It will thus be manifest that, irrespective of the position to which theweb has been previously fed to display a reading, upon manipulation ofthe selector S to one of its twelve positions, followed by the depositof a coin, the web will be fed automatically at a high speed to theproper starting position, and will then be fed at reading speed todisplay the matter on the selected portion of the web.

What is claimed is:

l. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively differentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a selector having meanscorrelated with said different portions of the webfor the selection ofany one of said portions for display; means for feeding the web at arela tively high speed, in accordance with the setting of the selector,to the proper starting position for the display of the selected portionof the web; and means for feeding at a relatively slow speed and inimage-projecting relation to said screen, that portion of the webselected by said selector.

2. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively differentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a selector having meansone for each of and correlated with said different portions of the webto select any one thereof for display; means for feeding the web at ahigh speed; means for feeding the web at a low speed for reading ofmatter thereon; means operatively connecting the selecting means andhigh speed feeding means for rendering the latter active to feed theweb: to the proper starting position for the display of the selectedportion of the web; and means operable when the web has been fed to theaforestated starting position, to discontinue activation of the highspeed feeding means and render the low speed feeding means active tocontinue feeding of the web sufficiently to display on the screen thematter on the selected portion of the web.

3. A changeable exhibitor comprising a screen;

a movably mounted web divided along its length into portions containingrespectively different matter to be displayed on the screen; means forprojecting an image of said matter on the screen as the web is moved; aselector having means one for each of and correlated with said differentportions of the web to select any one thereof for display; an electricmotor for feeding the web at a high speed; a second electric motor forfeeding the web at a low speed for reading; means operativelyassociating the selecting means and high speed motorand including acheck controlled switch through which current is supplied to the highspeed motor to feed the web at high speed to the proper startingposition for the display of the selected portion of the web; means fordiscontinuing the supply of current to the high speed motor and forsupplying current to the supply of current to the high speed motor 34when 7 low speed motor when the web has been fed to the aforestatedstarting position, to continue feeding of the web sufiiciently todisplay on the screen at reading speed the matter on the selectedportion of the web.

4. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively differentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a selector having meansone for each of and correlated with said different portions of the webto select any one thereof for display; an electric motor for feeding theweb at a high speed; a second electric motor for feeding the web at alow speed for reading; means operatively associating the selecting meansand high speed motor and including a check controlled switch throughwhich current is supplied to the high speed motor to feed the web athigh speed to the proper starting position for the display of theselected portion of the web; means for releasing a check from saidswitch to discontinue the supply of current to the high speed motor whenthe web has been fed to the aforestated starting position; and means forsupplying Icurrent to the low speed motor to continue feeding of the websufiiciently to display on the screen at reading speed the matter on theselected portion of the web.

5. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively difierentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a selector having meansone for each of and correlated with said different portions of the webto select any one thereof for display; an electric motor for feeding theweb at a high speed; a second electric motor for feeding the web at alow speed for reading; a plurality of relays one for each of said meansof the selector; a circuit controller having switches correlated withthe relays; means for driving the circuit controller in synchronism withthe feed of the web; means for supplying current to the high speedmotor; and means by which one of the relays and one of the switches ofthe circuit controller are rendered operative to discontinue operationof the high speed motor when the web has been fed to a proper startingposition in accordance'with the setting of the selector, and to supplycurrent to the low speed motor to continue feeding the web suiTicientlyto display on the screen the matter on the selected portion of the web.

6. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively differentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a selector having meansone for each of and correlated with said different portions of the webto select any one thereof for display; an electric motor for feeding theweb at a high speed; a second electric motor for feeding the web at alow speed for reading; a plurality of relays one for each of said meansof the selector; a circuit controller having switches correlated withthe relays; means for driving the circuit controller in synchronism withthe feed of the web; means including a check controlled switch throughwhich current is supplied to the high-speed motor when a check isdeposited to close said switch; and means by which one of the relays andone of the switches of the circuit controller are rendered operative torelease the check from said switch so as to discontinue operation of thehigh-speed motor when the web has been fed to the proper startingposition in accordance with the setting of the selector, and to supplycurrent to the low speed motor to continue feeding the web sufi'icientlyto display on the screen the matter on the selected portion of the web.

7. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively differentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a motor operativelyconnected to the web to drive the latter at a high speed; a second motoroperatively connected to the web to drive the latter at a low speed;means for selecting one of said portions of the web for the display ofsuch portion on the screen; a plurality of relays one for each of saidportions of the web; a circuit controller having switches one for eachrelay; means for driving the circuit controller in syn-chronism with thefeed of the web; means for supplying current to the high-speed motor;means co-acting with one of said relays and one of the switches of thecircuit controller in accordance with the setting of said selectingmeans, to discontinue the supply of current to the high speed motor whenthe web has been fed to the proper starting position, and to supplycurrent to the low speed motor to continue feeding the web sufiicientlyto display on the screen the matter on the selected portion of the web.

8. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively differentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a motor operativelyconnected to the web to drive the latter at a high speed; a second motoroperatively connected to the web to drive the latter at a low speed;means for selecting one of said portions of the web for the display ofsuch portion on the screen; a plurality of relays one for each of saidportions of the web, and including electrical circuits electricallyassociated with the selecting means and said motors; and means foractivating one of said relays in accordance with the setting of theselecting means to discontinue the current supply to the high speedmotor at the proper starting position, and to supply current to the lowspeed motor for the display of the selected portion of the web on thescreen.

9. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively differentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a motor operativelyconnected to the web to drive the latter at a high speed; a second motoroperatively connected to the web to drive the latter at a low speed;means for selecting one of said portions of the web for the display ofsuch portion on the screen; a plurality of relays one for each of saidportions of the web and each embodying three switches; a source ofcurrent supply; a check controlled switch having an electro-responsivemeans and through which current can be supplied to the high speed motorupon the deposit of a check to close said switch; an electrical circuitincluding the source of current supply, said electro-responsive means inseries, and one normally open switch of each relay in multiple series; asecond circuit including the source of current supply, saidcoin-controlled switch in series, the high speed motor in series, andanother normally closed switch of each relay in series, a thirdelectrical circuit including the low speed motor in series, and thethird and normally open switch of each relay in multiple series; afourth electrical circuit including the source of current supply, theselecting means, and the magnet of each relay; and means for controllingthe supply of current to the magnets of the relays so as to discontinuethe current supply to the high speed motor when the web has been fed tothe proper starting position in accordance with the setting of theselecting means, and to supply current to the slow speed motor tocontinue feeding the web sufficiently to display the selected portion ofthe web.

10. A changeable exhibitor comprising a screen; a movably mounted webdivided along its length into portions containing respectively differentmatter to be displayed on the screen; means for projecting an image ofsaid matter on the screen as the web is moved; a motor operativelyconnected to the web to drive the latter at a high speed; a second motoroperatively connected to the web to drive the latter at a low speed;means for selecting one of said portions of the web for the display ofsuch portion on the screen; a plurality of relays one for each of saidportions of the web and each embodying three switches; a source ofcurrent supply; a check controlled switch having an electro-responsivemeans and through which current can be supplied to the high speed motorupon the deposit of a check to close said switch; an electrical circuitincluding the source of current supply, said electro-responsive means inseries, and one normally open switch of each relay in multiple series; asecond circuit including the source of current supply, saidcoin-controlled switch in series, the high speed motor in series, andanother normally closed switch of each relay in series, a thirdelectrical circuit including the low speed motor in series, and thethird and normally open switch of each relay in multiple series; afourth electrical circuit including the source of current supply, theselecting means, and the magnet of each relay; a circuit controllerhaving switches one for each relay and respectively included in circuitwith the magnets of the relays; and means for synchronously driving thecircuit controller relatively to the feed of the web, to cause thesupply of current to the high speed motor to be discontinued when theweb has been fed to the proper starting position in accordance with thesetting of the selecting means, and to supply current to the low speedmotor to continue feeding the web sufficiently to display the selectedportion of the web.

11. A changeable exhibitor comprising a cabinet having a screen; anendless web mounted in the cabinet for movement across the screen, anddivided throughout its length into portions containing matter to bedisplayed; means for projecting onto the screen an image of matter onsaid portion of the web; feeding mechanism for the web; a high speedmotor; a low speed motor; means operatively connecting said motors tothe feeding mechanism; means for selecting a portion of said web for thedisplay of matter thereon; means adapted to supply current to the highspeed motor; means for discontinuing the supply of current to the highspeed motor when the web has been fed to the proper starting positionfor the display of matter on a portion of the web in accordance with thesetting of said selecting means; and means for supplying current to thelow speed motor to continue feeding the web sumciently to display on thescreen the matter on the selected portion of the web.

12. A changeable exhibitor comprising a cabinet having a screen; anendless web mounted inthe cabinet for movement across the screen, anddivided throughout its length into portions containing matter to bedisplayed; means for projecting onto the screen an image of matter onsaid portion of the web; feeding means for the web; a high speed motor;a low speed motor; means operatively connecting the high speed m0- tordirectly to the feeding mechanism; means for operatively connecting thelow speed motor to the feeding mechanism through the high speed motor,and including a uni-directional clutch by which the high speed motor isrendered incapable of driving the low speed motor; means for selecting aportion of said web for the display of matter thereon; means adapted tosupply current to the high speed motor; means for discontinuing thesupply of current to the high speed motor when the web has been fed tothe proper starting position for the display of matter on a portion ofthe web in accordance with the setting of said selecting means; andmeans for supplying current to the low speed motor to continue feedingthe web sufliciently to display on the screen the matter on the selectedportion of the web.

13. A changeable exhibitor comprising movably mounted means havingportions containing respectively different matter to be displayed; meansby which any one of said portions of the movably mounted means can beselected for display; means for feeding the movably mounted means at arelatively high speed to the proper starting position for the display ofthat portion of the movably mounted means which has been selected; andmeans for feeding the movably mounted means at a relatively low speedand sufliciently to display the selected portion of the movably mountedmeans.

14. A changeable exhibitor comprising a mov- :L

ably mounted web divided along its length into portions containingrespectively different matter to be displayed; means by which any one ofsaid portions of the web can be selected for display; means for feedingthe web at a relatively high speed to the proper starting position forthe display of that portion of the web which has been selected; andmeans for feeding the web at a relatively low speed and sufficiently todisplay the selected portion of the web.

ROBERT L. L. WARNER.

